人体肺部超声检查中成像伪影的实验建模

IF 1.2 4区 物理与天体物理 Q4 ACOUSTICS
S. D. Sorokin, M. V. Ryabkov, S. A. Tsysar, O. A. Sapozhnikov, V. A. Khokhlova
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引用次数: 0

摘要

为了揭示人体肺部超声图像中的伪影(所谓的b线)的本质,我们创建了实验模型,包括用于声学模仿肋间肌肉的硅酮层,模仿健康或水肿肺组织的细孔泡沫烧伤敷料层,泡沫敷料碎片,橘子汁囊和一滴模仿肺组织结构的超声凝胶。超声图像记录用线性超声探头L7-4连接到Verasonics V-1扫描仪。此外,利用奥林巴斯聚焦压电传感器,采用合成孔径法构建了位于水面上的柑桔汁囊的图像。结果超声图与肺病理临床病例记录的图像进行比较。结果表明,b线的出现与模拟肺组织的充液结构中多重混响的影响有关,而b线在回声图上的亮度和宽度取决于假体内部结构的特征尺寸。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Experimental Modeling of Imaging Artifacts in Ultrasound Examination of Human Lungs

Experimental Modeling of Imaging Artifacts in Ultrasound Examination of Human Lungs

Experimental Modeling of Imaging Artifacts in Ultrasound Examination of Human Lungs

To reveal the nature of artifacts in ultrasound images of human lungs (so-called B-lines), experimental phantoms were created consisting of a silicone layer for acoustic imitation of intercostal muscles, a layer formed with finely pored foam burn dressing imitating healthy or edematous lung tissue, a foam dressing fragment, a mandarin juice sac, and a drop of ultrasound gel imitating the structures of the lung tissue. Ultrasound images were recorded with a linear ultrasonic probe L7-4 connected to a Verasonics V-1 scanner. Additionally, an image of a mandarin juice sac located on the surface of the water was constructed using the synthetic aperture method with an Olympus focused piezoelectric transducer. The resulting echograms were compared with images recorded in clinical cases of pulmonary pathologies. It is shown that the appearance of B-lines is associated with the effects of multiple reverberation in liquid-filled structures imitating lung tissue, while their brightness and width on the echogram depend on the characteristic size of the internal structure of the phantom.

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来源期刊
Acoustical Physics
Acoustical Physics 物理-声学
CiteScore
1.60
自引率
50.00%
发文量
58
审稿时长
3.5 months
期刊介绍: Acoustical Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It covers theoretical and experimental aspects of basic and applied acoustics: classical problems of linear acoustics and wave theory; nonlinear acoustics; physical acoustics; ocean acoustics and hydroacoustics; atmospheric and aeroacoustics; acoustics of structurally inhomogeneous solids; geological acoustics; acoustical ecology, noise and vibration; chamber acoustics, musical acoustics; acoustic signals processing, computer simulations; acoustics of living systems, biomedical acoustics; physical principles of engineering acoustics. The journal publishes critical reviews, original articles, short communications, and letters to the editor. It covers theoretical and experimental aspects of basic and applied acoustics. The journal welcomes manuscripts from all countries in the English or Russian language.
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